Design of die adjustment component vector decomposition method for metal screw forming

Abstract

Abstract This research focuses on the punch case adjustment vector decomposition problem of metal screw forming machines that occurred frequently in fastener manufacturing. The dimension component vectors of screw forming center axial line misalign for die adjustment were often decided by human experience currently and the adjusted results were not always be satisfied. It is a difficult problem to analyze the punch die adjust component vector from screw specific shape measurement information. This research integrates rotation axial optical measurement instrument and die adjustment mechanical specification information of forming machine then using the proposed sampling process so that the adjustment component vectors with respect to the punch case can be decomposed. The result of this research provides the adjustment guidance that includes main items of misalignment component vector. A practical verification is also demonstrated in this paper by using a type of screw forming machine for showing the feasibility of the designed die adjustment method.